In a large skillet, saute onion in butter until tender. Stir in tomato sauce, water, barbecue sauce, Worcestershire sauce and seasonings. Bring to a boil. Reduce heat. Cover; simmer for 30 minutes.,Meanwhile, in a saucepan, saute mushrooms and onion in butter until tender. Stir in flour. Gradually whisk in milk until blended. Bring to a boil; cook and stir for 2 minutes or until thickened.,Discard bay leaf. Spread 1/2 cup tomato sauce into a greased 13-in. x 9-in. baking dish; top with 4 noodles. Layer with 1 cup spinach, 1/2 cup cottage cheese, half of white sauce, 1 cup mozzarella cheese, half of venison and 1/2 cup cheddar cheese. Repeat layers once. Top with remaining noodles, tomato sauce and mozzarella cheese.,______